Portable oil heater



Jan. 5 19 26.

H. K. ALLEN PORTABLE oxL HEATER Original Filed Jan. 26, 1924 2 Sheets-Sheet 1 INVENTOR. Ha ralciK/fllezz.

A TTORNEY.

Jan. 5 1926.

H. K. ALLEN PORTABLE OIL HEATER 2 Sheets-Sheet 2 Original Filed Jan. 26 19 w m a M, W 0 I u wfiw o E N Q .Q Q Q Q :Q S E w -fimv km N E w P Patented Jan. 5, 1926.

UNITED" STATES PATENT OFFICE.

HAROLD x. ALLEN, SPRINGFIELD,MASSACHUSETTS- PORTABLE OIL HEATER.

Application filed January 26, 1924, Serial No. 688,683. Renewed October 30, 1925.

To all whom it may concern:

Be it known that I, HAROLD. K. ALLEN, a citizen of the United States, residing at Springfield, in the county of Hampden and State of Massachusetts, have inventednew and useful Improvements in Portable Oil Heaters, of which the following is. a. specification. I

This invention relates to improvements in heaters, and particularly heaters that are. de-. signed for portable use as in garages and places where a small quantity of heat is desired and one that may be carried readily from place to place. It is particularly designed for utilizing oil as a fuel and is so constructed and arranged as. to afford safety Wherever the heater is. located.

Broadly the invention comprises a base portion in which the tank or liquid fuel is located, and, an upper. radiator portion which is removable from the base portion and in which the burner is located. vSuitable inlet and outlet openings are provided for obtaining free circulation through the heater. These openings are preferably cov-.

ered with a find wire gauze to prevent external fumes from becoming ignited on the principle of the Davy safety lamp. The upper or heat radiating portion is prefers ably removable from the base portion. Lo-

cated above the lower portion is. the oil' burners. A suitable oil feed-:pipe' connec-. tion extends between the oil supply tankand the burners. Further objects and nature will appear in the body of the specification and will be particularly pointed out in the claims.

Referring to the drawings:

Fig. l is an end elevational view showing the base portion with the tank located there v in and the removable or upper portion with a part broken away to illustrate the bafile plate. w v

Fig. 2 is a vertical sectional view on the line 2-2 of Fig. 1 showing the; interior construction of the upper and lower portions, the burners, and the oil pipe connec-.

tion between the burners and the tank.

Fig. 3 is a vertical sectional view on the line 33 of Fig. 2, showing the transversely arranged support for the burners, openings below the burners for providing necessary quantity of air to support combustion and the wire gauze or screen located over in the openings.

Fig. 4 is a detail view of one of the end plates, and Fig. 5 is a modification.

Referring to the drawings in detail:

1 and 2 designate the upright end portions of the base part, each one of which is' formed with a circular opening 1 and 2 to receive the oil supply tank 3. The end portions are formed with a slit 1 which extends from the openings 1 and 2 to the lower edge, as shown. The tank is secured or clamped in place by means of the bolts 4 and 5 which are passed through ears 6 and 7, whereby thetank 3 is rigidly clamped in place. The

front or left hand end of the tank is provided with a filling nozzle 8 that is closed by the plate 9, which plate is held in place bythe threaded rod 10 as shown. Also located on the forward end of the tank is the air supply valve 11 and the fuel supply valve 12-. Connected to the valve 12 is a pipe 13.

which extends nearly to the bottom ofthe tank 3. The oil level in the tank is indicated by the dotted line 1 1. It will there: fore be seen that when air is forced into the upper portion of the tank 3 above the oil level that the oilmay be forced out of the tank through the pipe 13 when the valve 12 is opened. A suitable air pressurev gage 15 is shown connected at the upper side of the tank 3. Located above the tank; 3 and extending the length of theheater is a plate 16. This plate is attached to the end; plates land 2 by means of the rivets 17 and serves to retain the end plates in place, The plate 16 is formed with a plurality of air inlet openings 18 for admitting the necessary quantity of air to the burners. Located on the plate 16 is a strip of'wire gauze or netting 19 of suitable mesh and located on the wire gauze 19 is a plate. 20. The plate 1.6, gauze 19 and plate 20. are bolted together as shown at 21. The'openings 22 it will be seen register with the openings 18 and llll said upper portion is preferably formed of sheet metal and bent into a substantially inverted U-shape, the oppositely located sides of which are designated at 28 and 29. The upper top portion is curved as indicated at 30 which portion is formed with the openings 31 for the escape of the products of combustion. Located on the inside of the curved portion over the openings 31 are pieces of wire gauze 32 similar to the pieces of gauze 19 shown in Fig. 3 for the purpose of preventing dangerous or explosive fumes from entering the interior of the burner. Attached to the inner surface of the side portions 28 and 29 is a heat deflector plate 33, by means of the brackets 34. 35 designates a strip of metal which is located on the inside of the upper part of the heater and is secured thereto by the rivets 36. This strip is for the pu pose of providing a stop or rest against which the upper ends 37 of the base pieces 1 and 2 engage, whereby the upper portion is retained in place a suitable distance above the burners. For the purpose of gaining access to the burners 26, a slidable door 38 is provided for opening and closing the entrance 39.

Referring to the construction shown in Fig. 5 the interior of the radiator is provided with a partition member a l that extends the length of the radiator. It is attached to the inner surface of the radiator member by means of the rivets 45. Air inlet openings 46 are provided for admitting the external air to be heated, and, air outlet openings l? are provided for the escape of the heated air. This construction is designed to be used as a heater to prevent the heated products of combustion from entering the room. In order to accomplish this, an outlet pipe 48 is provided which is located and enters the interior of the part 44 at the extreme end of the radiator as shown. It should be stated that the construction shown in Fig. 5 is to be substituted for that shown in Figs. 1 and 2.

What ll claim is:

1. A portable heater comprising a base portion and an upper or radiating portion, the base portion having two end members which are formed with openings, a tank for containing fuel located in the openings, the base portion being slitted to permit the insertion of the tank, and means for clamping the tank in place, a burner located on the base portion, a suitable pipe connection between the tank and the burner.

A portable oil heater comprising in combination, a base portion and an upper radiator portion, the base portion having a member which is formed with an opening therethrough, a strip of wire gauze located over the opening, members located on the wire gauze and formed with an opening which registers with the opening in the member, means for supporting a burnerabove said member, said means including a part attached to the base portion, and means on the burner supporting means to position the burner thereon.

3. In a portable oil heater, a base portion including two upright end portions each having an opening formed therein and with a slit extending from each of the openings to their lower edges, an oil tank in the open ings, and means for closing the slits to clamp the tank in place.

4:. In combination, end portions, an oil tank supported on the upright end portions, a burner, a pipe connecting the burner and tank, a member adjacent the burner which is formed with a draft opening, a piece of wire gauze located across the opening, a radiator above the burner and having draft openings, and wire gauze over the latter openings, whereby the burner is protected both above and below from external explosive gases, as described.

5. A portable oil heater comprising a base portion, a burner therein, a radiator which is formed with a curved upper end and supported on the base portion, an oil tank in the base portion, and means for supplying oil to the burner, the burner being protected against combustible gases by draft openings that are covered with wire gauze, the ends of the base portion having slitted openings therein, the oil tank being secured thereto in the openings by closing the slitted openings and the radiator having a single baffie plate concentrically located with relation to upper curved surface and below the draft openings therein and secured to the outer member of the radiator.

6. A portable heater comprising in combination, a base member, a member secured to the base member and having an air inlet draft opening, protective wire gauze over the opening, a radiator member located on the base member, the radiator member having a deflector therein which is spaced from the wall of the radiator member and secured thereto for deflecting the products of combust ion, the radiator member having an opening in its upper portion for permitting the products of combustion to escape and a protective wire gauze over the latter openlng.

In testimony whereof, I have hereunto signed my name at Springfield, Massachusetts, this 24th day of January, 1924.

HAROLD K. ALLEN. 

